dshow/Core/IBasicVideo.cs

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namespace dshow.Core
{
	using System;
	using System.Runtime.InteropServices;

	// IBasicVideo interface
	//
	// The interface enables applications to set video properties
	// such as the bit rate, and destination and source rectangles
	//
	[ComImport,
	Guid("56A868B5-0AD4-11CE-B03A-0020AF0BA770"),
	InterfaceType(ComInterfaceType.InterfaceIsDual)]
	public interface IBasicVideo
	{
		// Retrieves the average time between successive frames
		// in 100-nanosecond units
		[PreserveSig]
		int get_AvgTimePerFrame(
			out double pAvgTimePerFrame);

		// Retrieves an approximate bit rate for the video stream
		[PreserveSig]
		int get_BitRate(
			out int pBitRate);

		// Retrieves an approximate bit error rate for the video stream
		[PreserveSig]
		int get_BitErrorRate(
			out int pBitRate);

		// Retrieves the current video width
		[PreserveSig]
		int get_VideoWidth(
			out int pVideoWidth);

		// Retrieves the current video height
		[PreserveSig]
		int get_VideoHeight(
			out int pVideoHeight);

		// Sets the x-axis coordinate for the source video rectangle
		[PreserveSig]
		int put_SourceLeft(
			int SourceLeft);
		// Retrieves the x-axis coordinate for the source video rectangle
		[PreserveSig]
		int get_SourceLeft(
			out int pSourceLeft);

		// Sets the width of the source video rectangle
		[PreserveSig]
		int put_SourceWidth(
			int SourceWidth);
		// Retrieves the width of the source video rectangle
		[PreserveSig]
		int get_SourceWidth(
			out int pSourceWidth);

		// Sets the y-axis coordinate for the source video rectangle